diplodocus.org Git - nmh/blob - docs/historical/mh-jun-1982/Extras/libh/fopen2.c

   1 #ifdef COMMENT
   2         Proprietary Rand Corporation, 1981.
   3         Further distribution of this software
   4         subject to the terms of the Rand
   5         license agreement.
   6 #endif
   7
   8 #include "../h/iobuf.h"
   9
  10 /* this is the counterpart to fopen which leaves
  11  * the file opened for both read and write
  12  * fseek may then be used to position at the end of the
  13  * file (or wherever) before reading/writing
  14  */
  15 fopen2(filename, abufp)
  16 char *filename;
  17 struct iobuf *abufp;
  18 {
  19         register struct iobuf *bufp;
  20
  21         bufp = abufp;
  22         bufp->b_nleft = 0;
  23         bufp->b_nextp = 0;
  24         if ((bufp->b_fildes = open(filename, 2)) < 0) return(-1);
  25         return(0);
  26 }